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J, KISSICK, JR., AND C. DE VED.

TUBE CLEANER FOR BOILERS.

APPLICATION FILED FEB. 28, 1917.

l ,3 18,294. Patented Oct. 7, 1919.

2 SHEETS-SHEET 2.

JOSEPH KISSICK, JR., 0F NEW YORK, N. Y., AND CHARLES DE van, orPHILADELPHIA,

PENNSYLVANIA, ASSIGNORS TO FREDERICK W. LINAKEB, OF DUBOIS, PENNSYL-VANIA.

TUBE-CLEANER FOR BOILERS.

Specification of Letters Patent.

Patented et. t, 1919.

pplication led February 28, 1917. Serial No. 151,521.

To all whom t may concern:

Be it known that we, JOSEPH KIssioK, J r., residing in the borough ci'Manhattan, city, county, and State of New York, and CHARLES DE Vrin,residing in the city and county of Philadelphia, in the State ofPennsylvania, rboth citizens of the United Sta-tes of America, havejointly invented certain new and useful Improvements in Tube- Cleanersfor Boilers, of which the following is a specification.

This invention relates to tube cleaners `for boilers, especially boilersof the water tube type' having staggered rows of tubes, and aims toprovide improvements therein.

Revolving or oscillating jets of steam are used for 'blowing down thediagonal space between rows of lboiler tubes, for the purpose of blowingoi the soot and ash deposit which settles upon the tubes.

The present invention relates to this type of cleaners, and provides asimple and eii- -cient yoonstruction whereby the jet is renderedeffective throughout its revolution or oscillation in the direction ofthe diagonal between the tubes, the invention com rising defiecting,means which maintain t 'e jets substantially in the mid plane of thediagonal space between the rows of tubes, substantially throughout thepart of the movement of the jet in the' direction of the bank of tubes.

t is important to maintain the axis of the jet in the mid plane of theinterval betweenl the rows of tubes, inasmuch as otherwise the jet istoo much broken up, inpwhole ,or in part, thereby not reaching tubes, orportions vof tubes, in a lower part of the bank, and

also is of insufficient intensity to carry oli' the soot which isblownfo of the tubes. Moreover, as the atmospli'ere in which thecleaners work is quite hot and contains acid,-

gases oi' fumes, it is essential that the construction be of maximumsimplicity and have a minimum of moving parts. Moreover, the impin ementof jets on the tubes has an apprecia le wearing action thereon. Twoembodiments of the .invention are illustrated in the accompanyingdrawings.

In said drawings,-

Figure 1. is a transverse sectional View of i a boiler showing oneembodiment of the invention applied thereto;

Fig. 2 is a detail View of the embodiment of the invention shown 1nFig..1;

Figs. 3 and 4. ane respectively a side elevation and a to plan view ofthe construction shown in 4ig. 2;

Fig. 5 is a view similar to Fig. 1,'showing a secondembodiment of theinvention;

Fig. E is a detail View ofthe embodiment shown in Fig. 5, the partsbeing shown in section;

Figs. 7 and 8 are side lelevation. and top plan views respectively ofthe construction shown in Fig. 6.

Referring first to the' embodiment shown in Figs. l to 4 inclusive, thenumeral l designates a series of boiler` tubes arranged in diagonalrows; 2 designates a steam pipe adapted to be rotated or oscillated atsuitable times, and by suitable means"throughv a .sprocket wheel 3 orthe like.' Upon the pipe 2` is a series of nozzles 4: adapted to directjets of steam down the interval between the rows of tubes, the cleaningbeing done by diverging portions of the jet striking against the topsand sides of. the tubes and blowing 0E the soot or ash thereon. There isalso a secondary cleaning action of the jet due to the deflection of thediverging portions thereof from one tube to anothe The nozzles 4 havetheir axes substantially parallel or coincident with the mid plane ofthe diagonalinterval between the tubes, when the nozzle is directeddownwardly at one (or two) point. Referring to Fig. 2,' it will be seenthat the axis 7 generates a conoidal surface a, or a portion of a4conoidal surface, as it revolves or oscillates. The surface of the coneis hence only parallel or coincident with the mid plane of the-diagonalinterval between the tubes at one (or two) point. At other points of itsmovement the jet is blowing either more toward the tubes on one side ofthe mid plane of the interval, or toward the tubes on the other side.Suiiicient movement will bring the jets to a point where the tubes willentirely or largely deflect the jet from the diagonal interval betweenthe tubes. Hence it is possible for the jets to. blow straight down theinterval between the tubes for only a ver limited part of its' movement.The e ciency of the jet is hence much below its maximum.

In order to maintain the axis of the jet coincident or parallel to themid plane of the interval between the tubes during the time that thenozzles are blowing in the direction of the tubes, means are providedfor this purpose. The means preferably comprise defiectors 8 havingsuitably warped or curved surfaces 9 to deflect 0r correct vthe jet, sothat it will blow with its axis substantially parallel or coincidentwith the mid plane of the interval between the tubes, in all positionsof the nozzle where it blows in the direction of the bank of tubes. Inthe construction illustrated the surface between the curved lines m andy is a curved surface formed by joining the end points of an infinitenumber of vradiating parallels to the revolving axis of the jet (havingtheir locus in the line to the end points of an ininite number ofradiating lines running parallel to the mid plane of the diagonalinterval (having their locus in the line y).

The spacing of the jets and deflectors is preferably such as to give thedesired cleaning action. One may be placed in conjunci tion with eachtube row or interval, orin conjunction with alternate rows orinter vals,or otherwise. As here shown the deflectors are placed in conjunctionwith alternate tube rows or intervals, and the jets or nozzles are inpairs adapted to blow down intersecting diagonal intervals.

Conveniently, also, the defiecting surfaces 9 may be formed upon asaddle 11 which straddles a pipe, which saddlek may, also conveniently,have bearings 12 thereon for supporting the tube 2 through which thesteam is conveyed to the nozzles 4.

Referring to the embodiment shown in Figs. 5 to 8 inclusive, the numeral1 indicates, as before, rows of boiler tubes; the numeral 2' a steampipe, vand 4r nozzles adapted to directjets of steam intothe intervalbetween the rows of tubes. The axes 7 of the nozzles, in thisembodiment, revolve in a circular plane, which circular plane is at anlangle to the mid plane between the diagonal interval betweeny the rowsof tubes. For'directing and maintaining the jets in the mid plane of thediagonal interval, suitable delecting means 8 are provided, thesedeiiecting means being provided with suitably .concaved 'surfaces 9',the curvature decreasing from" the middle toward the side portions o, o.The,

action of the surfaces 9 willbe to deflect the jet into the 'diagonalinterval 'between the rows of tubes, throughout the portion of therevolution of the jets where the jetsl blow in the direction of thetubes. The diverging ,portionsl of the jetand the deflections of thesediverged portions by `the tubes, effect the cleaning of of the soot,etc., deposited on the tubes.

The deflectors andy ets may be so disposed with relation to the rows oftubes as yto give the desired cleaning effect. As here shown, thedeflectors are shown as formed upon a saddle 11 carried by a tube inevery The saddles 11 may have bearings In certain types of boilers, thediagonal rows of tubes are not strictly in a. straight line, but areslightly staggered. In this case it is desirable not to have the axes ofthe jets entirely symmetrical with respect to the vertical plane w ofthe tubes. The axis of the jet upon one side (as here shown,

upon the left-hand side of Fig. 6) is nearer;l f its plane of symmetrythan the axis of the' jet upon the otherside (the right-hand side ofFig. 6) is to its plane of symmetry. The

effect of this arrangement is to diminish the deflecting action of theimmediately-adjacenttubes.

While we have illustrated and described two embodiments of theinvention, the inst l vention is not to be understood to be limitedthereto, as the inventive ideas are capable of more various mechanicalexpressions.

What is claimed is 1. A boiler-tube cleaner, comprising jetforming meansvfor directing a rotatable jet of steam toward a diagonal intervalbetween rows of boiler tubes, and means for deflecting the jet to retainit in the diagonal interval between the rows of tubes, said de'-`lecting means comprising a concaved curved;

surface.

2. A boi'ler-tubelcleaner, comprising jet-` `r forming means fordirecting a rotatable jet of steam toward a diagonal interval betweenrows of boiler tubes, and means for deflect- 'ing the jet to retain itinthe diagonal in.

terval between the rows of tubes, said deflecting means comprising aIdierentially concaved curved surface.

3. A boiler-tube cleaner, comprising jetforming means for directing ayrotatable jet.'

of steam toward a diagonal interval between rows of boiler tubes, andmeans for deflecting the jet to retain it in the diagonal intervalbetween the rows of tubes, said deiectlng means comprising a pair ofconcaved curved surfaces,.sa1d surfaces being adapted to differentlymodify the jets impingin'g thereon.

4. A lboiler-tube cleaner, comprisingjet-i" forming'means for directin arotatable -jet of steam toward a diagonal interval between rows' ofboiler tubes, and means' for deiecting the jet to retain it in thediagonal intervalfoetween the rows/of tubes,- said jetdeflectln meanscomprising a concaved surface an plane surface intersecting the concavedsurace.

5. A 'boiler-tube cleaner, comprising a steam-pipe capable of rotarymovement, jetforming nozzles thereon for Adirecting a jet of 'steamtoward-- the rows of boilervtubes, a'

a nozzle whose axis generates a bearing for said rotary steam-pipe, saidbearing having a concaved curved surface for deecting the jet to retainit in the diagonal interval between the rows of tubes.

6. In a soot cleaner for water tube boilers, the combination of arevolubly mounted cleaning fluid distributing pipe having radialdischarge jets, means for supporting the pipe adjacent the boiler tubes,and means for protecting the tubes adjacent the cleaning pipe and forcausing the jets issuing radially therefrom to travel in oblique pathsthrough the boiler tu'bes, said last named means including a concavedface directly contacted by the cleaning fluid issuing from said pipe.

7. In a soot cleaner for water tube boilers, the combination of arevolubly mounted cleaning Huid distributing pipe having ra dialdischarge jets, means for supporting the pipe adjacent the boiler tubes,and means for protecting the tubes in line with the discharge jets andfor causing the jets issuing radially therefrom to travel in obliquepaths through the boiler tubes, said last named means including aconcaved surface curved on an arc concentric with the distributing pipe.

In witness whereof, we have hereunto signed our names in the presence oftwo subscribing witnesses.

JOSEPH KISSICK, JR. CHARLES DE VED. Witnesses:

GUsTAvn R. THOMPSON, THOMAS F. VALLAGE.

